I use sleep cycle on the iPhone and it works great when I'm away. Having said that, if you share a bed with a partner, YMMV - I just don't bother using sleep cy

I use sleep cycle on the iPhone and it works great when I'm away. Having said that, if you share a bed with a partner, YMMV - I just don't bother using sleep cycle at home, my wife moves a lot in her sleep.